Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD2005TAURUS SEL, 4D SEDANREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1201 (STEERING SYSTEM - ELECTRONIC POWER ASSIST STEERING (EPAS))
2005 Ford Taurus SEL, 4D Sedan
Section 1201 (Steering System - Electronic Power Assist Steering (EPAS))
2005 Ford Taurus SEL, 4D SedanSECTION Section 1201 (Steering System - Electronic Power Assist Steering (EPAS))
WARNING: This page is about a different car, the 2010 Mercury Milan, 2010 Lincoln MKZ, and 2010 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
- Description And Operation
- Diagnosis And Testing
- Interactive Diagnostics
- Inspection and Verification
- Known Concerns
- DTC / Symptom Selection
- DTC Index - Power Steering Control Module (PSCM)
- DTC Index
- DTC B1D23: Overheat Sensor
- DTC C1B00: Steering Angle Sensor
- DTC C200B: Steering Shaft Torque Sensor 1
- DTC C200C: Steering Shaft Torque Sensor 2
- DTC C200D: Motor Rotation Angle Sensor
- DTC P07AE: Transmission Friction Element G Performance/Stuck Off
- DTC U0001: High Speed CAN Communications Bus
- DTC U0100: Lost Communication with ECM/PCM A
- DTC U0121: Lost Communication with the Anti-lock Brake System (ABS) Control Module
- DTC U0126: Lost Communication With Steering Angle Sensor Module
- DTC U0159: Lost Communication With Parking Assist Control Module A
- DTC U0300: Internal Control Module Software Incompatibility
- DTC U0401: Invalid Data Received from ECM/PCM A
- DTC U0415: Invalid Data Received from ABS Control Module
- DTC U045A: Invalid Data Received From Parking Assist Control Module A
- DTC U2011: Motor
- DTC U2100: Initial Configuration Not Complete
- DTC U2101: Control Module Configuration Incompatible
- DTC U3000: Control Module
- DTC U3003: Battery Voltage
- Symptom Chart - Steering System and NVH
- DTC Index - Power Steering Control Module (PSCM)
- Pinpoint Tests
- Pinpoint Test A - DTC U3003: Battery Voltage - Circuit Voltage Below Threshold, Circuit Voltage Above Threshold and Event Information
- Pinpoint Test B - DTCs C1B00, C200B, C200C, U2011 and U3000: Steering Angle Sensor, Steering Shaft Torque Sensor 1, Steering Shaft Torque Sensor 2, Motor and Control Module - Failure or Erratic
- Pinpoint Test C - DTC U3000: Control Module - Signal Calculation Failure and Component Internal Failure
- Pinpoint Test D - DTC U3000: Control Module - Actuator Stuck Open
- Pinpoint Test E - DTC C1B00: Steering Angle Sensor - Signal Erratic
- Pinpoint Test F - DTC P07AE: Transmission Friction Element G Performance/Stuck Off - Component Failure
- Pinpoint Test G - Excessive Steering Wheel Play
- Pinpoint Test H - Steering System Pull/Drift/Wander or Steering Wheel is Off Center
- Pinpoint Test I - Poor Returnability/Sticky Steering and Lack of Assist or Inconsistent Assist
- Pinpoint Test J - Shimmy or Feedback (Rattle, Chuckle or Knocking Noise) - Roughness is Felt in the Steering Wheel When the Vehicle is Driven Over Rough Surfaces
- Pinpoint Test K - Damaged Steering Gear Bellows Boots
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.